Katrine, Loch

Lake in Stirling unitary authority, Scotland, 8 km/5 mi east of Loch Lomond and 15 km/9 mi west of Callander. The loch extends over a distance of 13 km/8 mi and its width is less than 2 km/1 mi at its widest point. Loch Katrine is situated in the heart of the Trossachs area, noted for its magnificent scenery.

Its waters discharge through the lochs of Achray and Vennachar into Eas Gobhain, which flows east for approximately 3 km/2 mi and then joins Garbh Uisg to form the River Teith, and supply the city of Glasgow. Ellen's Isle is located on the lake, and the mountains of Ben Venue and Ben A'an rise either side of its outflow.